Design an Ordered Stream Lab
In this lab, you'll design an ordered stream capable of receiving n
(idKey, value)
pairs arriving in an arbitrary order, where idKey
is an integer between 1
and n
and value
is a string. No two pairs will have the same idKey
. The stream should return the values in increasing order of their IDs by returning a chunk (list) of values after each insertion. The concatenation of all the chunks should result in a list of sorted values.
You need to implement the OrderedStream
class with the following methods:
OrderedStream(int n): Constructor
- Constructs the stream to taken
values.String[] insert(int idKey, String value): Method
- Inserts the pair(idKey, value)
into the stream, then returns the largest possible chunk of currently inserted values that appear next in the order.
Examples:
const os = new OrderedStream(5); os.insert(3, "ccccc"); // Inserts (3, "ccccc"), returns []. os.insert(1, "aaaaa"); // Inserts (1, "aaaaa"), returns ["aaaaa"]. os.insert(2, "bbbbb"); // Inserts (2, "bbbbb"), returns ["bbbbb", "ccccc"]. os.insert(5, "eeeee"); // Inserts (5, "eeeee"), returns []. os.insert(4, "ddddd"); // Inserts (4, "ddddd"), returns ["ddddd", "eeeee"]. // Concatentating all the chunks returned: // [] + ["aaaaa"] + ["bbbbb", "ccccc"] + [] + ["ddddd", "eeeee"] = ["aaaaa", "bbbbb", "ccccc", "ddddd", "eeeee"] // The resulting order is the same as the order above.
Constraints:
1 <= n <= 1000
1 <= id <= n
value.length == 5
value
consists only of lowercase letters.- Each call to
insert
will have a uniqueid.
- Exactly
n
calls will be made toinsert
.
Once you have implemented the OrderedStream
class and its methods, you will be required to complete a set of challenges to test your solution. Don't forget to export the OrderedStream
class from your solution file.
Note: This lab uses ESM import/export. Make sure to use ESM syntax for all imports and exports in your code.